Carrier WeatherExpert 50LC 07 Series Service And Maintenance Instructions page 10

7.5 Ton R-410A CHARGING CHART
For Standard Units: Must run both compressors and OFM at high speed
For Humidi-MiZer Units: Must run Sub-Cooling Mode
60 140
54
Add charge if above curve
120
48
Standard Unit w /
42
Hum idi-MiZer
100
36
30
80
24
18
60
12
6
40
0
-6 20
150 200 250
1050 1350 1650 1950 2250 2550 2850 3150 3450 3750 4050 4350
Compressor Discharge Pressure, [psig / Kpa]
Fig. 11 — 50LC**08 Cooling Charging Chart
Remove charge if below curve
300 350 400 450
10
Standard Unit
500 550 600 650
48LC500413
REV-C